Subtract 40/18 from 40/5
1st number: 8 0/5, 2nd number: 2 4/18
40/5 - 40/18 is 52/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
40/5 = 40 × 18/5 × 18 = 720/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
40/18 = 40 × 5/18 × 5 = 200/90 - Subtract the two like fractions:
720/90 - 200/90 = 720 - 200/90 = 520/90 - After reducing the fraction, the answer is 52/9
- In mixed form: 57/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5-40/18 40/5-80/18 40/10-40/18 40/5-40/36 40/15-40/18 40/5-40/54 40/25-40/18 40/5-40/90 40/35-40/18